x = linspace(0.99,1.01,101);
y1 = funca(x);
y2 = funcb(x);
y3 = funcc(x);
disp("values in [0.99,1.01] of (2.49a) :");
for i = 1:101
    disp(y1(i));
    if (mod(i,5) ~= 0)
        fprintf("%c%c",8,8);
    end
end
fprintf("\n");
disp("values in [0.99,1.01] of (2.49b) :");
for i = 1:101
    disp(y2(i));
    if (mod(i,5) ~= 0)
        fprintf("%c%c",8,8);
    end
end
fprintf("\n");
disp("values in [0.99,1.01] of (2.49c) :");
for i = 1:101
    disp(y3(i));
    if (mod(i,5) ~= 0)
        fprintf("%c%c",8,8);
    end
end
fprintf("\n");
plot(x,y1,'r',x,y2,'b',x,y3,'k');
legend('a','b','c');
axis([0.99,1.01,-2e-14,2e-14]);